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Zero-Fuel Weight (acronym: ZFW) is the weight of the aircraft without any fuel or cargo/passenger weight. This is found in the FMS/FMC's Reference page (INIT REF).

How to Use it in an FMCEdit

The FMC has many ways in calculating the exact weight of an aircraft. One of them is the ZFW, which means, Zero-Fuel Weight. This is an alternative of GR WT or Gross weight .